TUFLOW Message 3519

TUFLOW Message
CHECK 3519: Using MIN or GULLY option in SGS model.

Alternate Message
NA

Message Type
CHECK

Description
If the DEM's resolution is fine enough, SGS can preserve the gully along the cells without using any gully line. In such case using a gully line may overestimate the width of the flow path as it makes the entire cell and face flat.

Suggestions
Check if "SGS Sample Distance" and resolution of the DEM is fine enough to capture the gully line. If so, the topography modification MIN or GULLY option can be removed.

Up
3xxx Messages